Dynamic magnetic information storage or retrieval – Electronically correcting phasing errors between related...
Patent
1985-03-12
1987-02-17
Canney, Vincent P.
Dynamic magnetic information storage or retrieval
Electronically correcting phasing errors between related...
371 1, G11B 2020, G06K 504
Patent
active
046444173
ABSTRACT:
A digital signal reproducing apparatus comprises reproducing elements for reproducing digital signals from tracks of a magnetic tape having a guard band separating each of two adjacent tracks, which reproducing elements are arranged equidistant from each other along the tape width direction over a range which includes all of the tracks and guard bands, a parallel-to-serial converter supplied in parallel with outputs of the reproducing elements for performing a serial-to-parallel conversion and for producing a serial reproduced signal, a controller supplied with the serial reproduced signal for detecting a reproduced signal of a first track and for producing a pulse corresponding to the first track during a time period in which the outputs of those reproducing elements corresponding to a substantially uniform part of a magnetic field intensity distribution of the first track are obtained, which controller time-sequentially produces pulses corresponding to each of the tracks with a period corresponding to the track pitch, and an output circuit responsive to the output pulses of the controller for obtaining reproduced signals of the tracks and independently producing the reproduced signals of the tracks.
REFERENCES:
patent: 3702996 (1972-11-01), Wolfer et al.
patent: 3911493 (1975-10-01), Kihara et al.
"A Review of the MCA Disco-Vision System", by Kent D. Broadbent, Jul. 1974, Journal of the SMPTE, vol. 83.
Illustrated Dictionary of Electronics, 2nd edition, published 1982 by TAB Books, Pa., USA.
Canney Vincent P.
Victor Company of Japan Ltd.
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